| | Buckingham township (Bucks County), PA | Whitemarsh, PA | United States |
| Population | 20,795 | 19,501 | 329,725,481 |
| Female Population | 51.4% | 51.5% | 50.5% |
| Male Population | 48.6% | 48.5% | 49.5% |
| Median Age | 48 | 41 | 38.4 |
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| Population - 2010 | 20,111 | 17,394 | 309,327,143 |
| Population - 2000 | 16,442 | 16,702 | 285,036,114 |
| Population - 1990 | 9,364 | 14,863 | 251,960,433 |
| Pop. 2000 to Now | 23.4% | 11.3% | 15.6% |
| Pop. 1990 to Now | 116.6% | 25.0% | 30.8% |
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| Population Density | 632.4 | 1,336.4 | 93.4 |
| Land Area | 32.9 | 14.6 | 3,531,905.4 |
| Water Area | 0.1 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Buckingham township (Bucks County), PA | Whitemarsh, PA | United States |
| Age 0 to 4 | 3.2% | 5.2% | 5.9% |
| Age 5 to 9 | 4.7% | 6.6% | 6.1% |
| Age 10 to 14 | 8.5% | 7.0% | 6.6% |
| Age 15 to 17 | 6.4% | 2.2% | 3.9% |
| Age 18 to 20 | 4.2% | 2.3% | 4.0% |
| Age 21 to 24 | 3.4% | 5.0% | 5.2% |
| Age 25 to 34 | 5.8% | 12.6% | 13.8% |
| Age 35 to 44 | 10.0% | 14.3% | 12.9% |
| Age 45 to 54 | 16.9% | 12.1% | 12.6% |
| Age 55 to 59 | 10.4% | 6.8% | 6.7% |
| Age 60 to 64 | 7.4% | 7.4% | 6.3% |
| Age 65 to 74 | 12.3% | 9.1% | 9.6% |
| Age 75 to 84 | 5.7% | 6.1% | 4.5% |
| Age 85 and over | 1.1% | 3.4% | 1.9% |
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| Race | | | |
| | Buckingham township (Bucks County), PA | Whitemarsh, PA | United States |
| White | 86.4% | 82.0% | 59.4% |
| Black | 0.5% | 2.6% | 12.2% |
| Asian | 6.5% | 7.8% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.1% | 0.6% | 0.4% |
| Two or More Races | 3.6% | 2.8% | 3.2% |
| Hispanic | 3.0% | 4.2% | 18.4% |
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| Marriage & Family | | | |
| | Buckingham township (Bucks County), PA | Whitemarsh, PA | United States |
| Married Population | 61.5% | 59.8% | 49.8% |
| Currently Married | 61.2% | 58.5% | 48.0% |
| Married but Separated | 0.3% | 1.3% | 1.8% |
| Single Population | 38.5% | 40.2% | 50.2% |
| Never Married | 25.4% | 27.3% | 33.8% |
| Divorced | 7.4% | 7.3% | 10.8% |
| Widowed | 5.7% | 5.6% | 5.6% |
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| Household Size | 2.81 | 2.43 | 2.60 |
| Households | 7,349 | 7,878 | 124,010,992 |
| Family Households | 5,658 | 5,188 | 80,755,759 |
| Married couple, w/children | 40.0% | 37.3% | 30.5% |
| Married couple, no children | 49.3% | 47.9% | 42.9% |
| Non Family Households | 1,691 | 2,690 | 43,255,233 |
| Single householder, w/children | 6.4% | 7.6% | 15.8% |
| Single householder, no children | 4.4% | 7.3% | 10.8% |